Finding the Fourth Proportional to 28,611,202.62, 39,484,497.93 and 16,390,421.58
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Solution
The fourth proportional to 28,611,202.62, 39,484,497.93 and 16,390,421.58 is: 22,619,376.60
Step by Step Solution
- Step 1: Write the proportion equation
28,611,202.62 : 39,484,497.93 = 16,390,421.58 : x - Step 2: Convert to fraction form
28,611,202.62/39,484,497.93 = 16,390,421.58/x - Step 3: Cross multiply
28,611,202.62x = 39,484,497.93 × 16,390,421.58 - Step 4: Simplify right side
28,611,202.62x = 647,167,566,947,337.38 - Step 5: Solve for x
x = 647,167,566,947,337.38/28,611,202.62 - Step 6: Final answer
x = 22,619,376.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.